Form structure for concrete foundations and the like



March 2, 1965 LIKE ' W ANDERSON FORM STRUCTURE FOR CONCRETE FOUNDATIONS AND THE 4 Sheets-Sheet 1 Filed Dec. 27, 1961 March 2, 19.65 w. ANDERsoN F-ORM STRUCTURE FOR CONCRETE FOUNDATIONS AND THE LIKE Filed Dec. 2v. 1961 NVENTOR, Wdaz @Im/:50m BY all?? 4 Sheets-Sheet 2 l'.QWMQ/r- March 2, 1965 w. ANDERsoN FORM STRUCTURE FOR CONCRETE FOUNDATIONS AND THE LIKE Filed Dec. 27. 1961 4 Sheets-Sheet 3 76 375/ @2 5 '73 55d? f INVENTOR.

Walken@ @92076/17075 March 2, '1965 w. ANDRSON 3,171,185

FORM STRUCTURE FOR CONCRETE FOUNDATIONS AND THE LIKE Filed Dec. 27, 1961 4 sheets-sheet 4 /0 Y Y .Z 25 /9 7 @w /0 57 /5 74 j /ZS 6 j? [d n v Aill m 50 60 76 75km l a M 60 4' /zi Q/ /39/ 60 657/ ii i0 55, I l 60 INV ENTOR.

MMQMP//W United States Patent 3,171,185 FRM STRUCTURE FR CQNCRETE FOUNDA- TIONS Tm LIKE William Anderson, 6603 Diversey Ave., Chicago 35, Ill. Filed Dee. 27, 1961, Ser. No. 162,404 9 Claims. (Cl. 25-131) The present invention is directed to a form structure for pouring concrete foundations and the like and, more particularly, to such a form structure which is prefabricated.

The general object of the present invention is to provide a new and improved prefabricated form structure for pouring concrete foundations and the like which may be readily assembled and disassembled in a simple manner and in a relatively short period of time.

An important object of the present invention is to provide a new and improved form structure which includes end form members which are adapted to be rigidly mounted in longitudinally spaced relationship and intermediate or insert form members which are merely hung between the end form members on suitable supporting rods whereby to provide a continuous form structure.

A more detailed object of the present invention is to provide a new and improved form structure of the character described wherein the intermediate form members are provided with downwardly inclined slots for hanging same on a pair of vertically spaced rod members which are ireleasably secured between the end form members, the rod members being releasable from the end form members and disengageable from the slotted intermediate form members after the concrete has set whereby to permit ready removal of the intermediate form members from between the end form members.

Another important object of the present invention is to provide a new and improved form structure of the character described wherein novel rod supporting members are rigidly mounted on the end form members for releasably securing the rod members therebetween in vertically spaced relationship.

A further object of the present invention is to provide a new and improved form structure of the character described wherein the intermediate form members are provided with releasable clamping devices for clamping same to the rod members.

Another object of the present invention is to provide a new and improved form structure of the character described wbch is ,readily adaptable for most foundation pouring operations and which is extremely durable and may be used again and again for a substantial number of different foundation pouring operations.

Another important object of the present invention is to provide a new and improved method for assembling a form structure of the character described.

Certain other objects of the invention will, in part, be obvious, and will in part appear hereinafter.

For a more complete understanding of the nature and scope of the invention reference may now be had to the accompanying drawings wherein:

FIG. l is a perspective view of a preferred form of the foundation structure of the present invention, as assembled for pouring a corner Segment of a foundation, with some of the clamping hardware being removed for clarity;

FIG. 2 is a perspective view of the rigidly mounted end form members of FIG. 1 after the rod members have been releasably secured therebetween and before the intermediate or insert form members have been hung on the rod members;

FIG. 3 is a perspective View from the side and top of one of the intermediate or insert form members of FIG. 1;

FIG. 4 is a perspective View of a somewhat wider intermediate or insert form member having vertically extend- ICC ing strengthening ribs and being mounted on and clamped to a pair of vertically spaced rod members;

FIG. 5 is an enlarged vertical section taken generally along the line 5-5 of FIG. 1;

FIG. 6 is a vertical section taken generally along the line 6-6 of FIG. 5;

FIG. 7 is a broken elevational view of another form structure assembly partially in vertical section as taken along the line 7-7 of FIG. 8 and with the clamping hardware removed;

FIG. 8 is a horizontal section taken generally along the line 8 8 of FIG. 7; and

PEG. 9 is a central vertical section taken through a modified rod member which is adjustable in length.

As best illustrated in FIG. 1, the assembled prefabricated form structure for pouring concrete foundations and the like includes a series of pairs of rigidly mounted vertically disposed prefabricated form members 10, which pairs are longitudinally aligned in spaced apart relationship with the form members 10 of each pair being laterally spaced apart a distance equal to the thickness of the foundation or wall to be poured. For convenience, these rigidly mounted form members lil which are adapted to be positioned at the ends or corners of the foundation to be poured and at points therebetween will be referred to as end members 10 with the inner and `outer co-rner end members being further identified by the reference numerals 11 and 12, respectively, and the inner and outer non-corner end members, which may be identical, being further identified by the reference numeral 13. The assembled form structure further includes vertically spaced pairs of elongated rod members 14 which are releasably secured between adjacent ones of the longitudinally spaced end members 10 and a plurality of Prefabricated insert or intermediate form members 15 one or more of which are adapted to be hung on the pairs of rod members 14 whereby to completely till the spaces between 4the adjacent longitudinally spaced end members 10 and thus provide a completed continuous form structure for pouring concrete foundations and the like, such as the completed corner section illustrated in FIG. 1.

As best illustrated in FIGS. l and 2, the prefabricated end members 1l) of the embodiment of the invention shown in the drawings are vertically elongated, open-sided box-like forms with the open sides thereof being disposed outwardly when the end members 10 are rigidly mounted in the assembly of a form structure. Preferably, the end members 10 are formed of lightweight sheet metal whereby they are rigid, weather and wear resistant, and may be used for a great number of foundation pouring operations.

Each box-like inner corner end member 11 is characterized by a pair of vertically disposed mold walls 17 which are disposed normally to each other and have outer planar mold surfaces, a pair of vertically disposed side walls 18 of lesser width than said mold walls 17 disposed normally to the non-meeting edges thereof `and extending in directions away from the mold surfaces thereof, and by generally rectangular top and bottom walls 19 and 20, respectively, having one corner of each removed in conformity with the lesser width side walls 18, whereby to provide a rigid box-like form member having an open corner permitting access to the interior thereof. Each outer corner end member 12 is characterized by a pair of vertically disposed mold Walls 22 which are disposed normally to each other and have inner planar mold surfaces, a pair of vertically disposed side walls 23 which extend normally to the non-meeting edges of said mold walls 22 in ldirections away from the mold surfaces thereof, a pair of vertically disposed strengthening ribs 24 (FIG. 8) which extend normally to the meeting edges of said mold walls 22 in directions away from the mold surfaces thereof, and by generally L-shaped top and bottom walls and 26, respectively.

Each non-corner end member 13 is characterized by a vertically disposed mold wall Z8 having an outer planar mold surface, a pair of vertical side walls 29 which are disposed normally to the vertical edges of said mold wall 28 and which extend in directions away from the mold surface thereof, and by horizontally disposed top and bottom walls Sti and 31 respectively.

Although not shown in the drawings, all of the end members 10 may be lprovided with known-type internal angle members at the intersections of the walls thereof for purposes of strength and rigidity.

As best illustrated in FlG. 2, the pairs of end members 16 are Vrigidly mounted with the end members of each pair being laterally spaced apart a distance equal to the ythickness of the foundation or wall to be poured and with their mold surfaces facing one another, and with each pair being longitudinally spaced apart predetermined distances from adjacent pairs with their mold surfaces in alignment therewith. The end members 10 may be rigidly mounted in any well-known manner as, for instance, on a poured concrete footing 33 as illustrated in FlGS. 1, 2, 7 and 8. As illustrated, the bottom walls of all the end members 1@ are secured to the concrete footing 33 by known-type releasable anchor bolt fasteners 34. The inner and outer corner end members 11 and 12, respectively, are first bolted down with their mold surfaces facing each other in the desired laterally spaced relationship. The adjacent pairs of non-corner end members 13 are then bolted down in predetermined longitudinally spaced relationship to the corner end members 11 and 12 with their mold surfaces facing each other. As will be evident hereinafter, the longitudinal spacing between adjacent pairs of end members 10 may vary as long as the distances, where possible, are multiples of the Width of the intermediate or insert form members 15.

The upper ends of the end members l@ may be further stabilized by laterally extending brace members 35, the opposite ends of which may be secured to the top walls of each pair of ends members 16 by conventional fasteners a, as illustrated in FIGS. 1 and 2. Although not shown in the drawings, it may be desirable, in certain situations, to provide similar lateral brace members or straps between the bottom walls of each pair of end members 1G, such lower brace members, of course, becoming embedded in the poured concrete foundation or the like.

The elongated rod members 14, which are preferably of predetermined lengths equal to various multiples of the width of the intermediate or insert form members 15, that is equal in length to the prescribed distances between the longitudinally spaced end members 10, are adapted to be releasably secured between adjacent longitudinally spaced end members 10 in vertically spaced arrangement by releasable supporting rod heads or members 36 which are provided on each of the end members 10. As best illustrated in FG. 5, each rod member 14 is axially bored, at least at its opposite ends, with each axially bored end of each rod member 14 being characterized by an outer bore portion dening a smooth conical bearing surface 38 and by an inner non-conical bore portion adjacent thereto which is provided with an internal thread formation 39.

As shown in FGS. 1 and 2, the vertical side Walls of each of the end members 10 are provided on their inner surfaces with a pair of the supporting rod heads or members 36 in vertically spaced relationship, each of which, as best illustrated in FIG. 5, includes a collar or sleeve member 42 which is rigidly secured to the inner surface of the vertical side wall of one of the end members 10 by fasteners 43 which extend through a flange portion 44 of each collar member 42. The side walls of each end member lil are provided with bores 45 which are equal in diameter to and aligned with the bores of the collar or sleeve members 42, the diameter of the bores 45 being less than the outer diameters of the rod members 1d. Each collar member 42 has a fastener member 17 confined therein for rotational and longitudinally slidable movements by a pair of locking screws 48 which extend radially through the Walls of the collar member 42 and have their inner ends projecting into the outer portion of a longitudinally extending annular groove 4S formed on each of the fastener members Each fastener member 47 is provided with an externally threaded inner end portion 51 which is adapted for threaded engagement with the internally threaded bore portion 39 of any one of the rod members 14 and an adjacent conical bearing surface 52 which is adapted for mating engagement with the conical bore portion 3S of any one of the rod members 14. A manually manipulable handgrip or knob 53 is provided on the outer end of each of the fastener members 47 whereby the fastener members 47 may be readily shifted between their inner rod-membersupporting positions, as shown in FlG. 5, and their outer rod-member-release positions wherein the innermost ends of the fastener members i7 are disposed lush with or inwardly of the outer surfaces of the side walls of the end members 10 and thus out of supporting engagement with the rod members 14.

The mating conical surfaces 3S and 52 of the rod members 1d and the fastener members 47, respectively, serve two important purposes. First, they serve as locators whereby to facilitate mounting the rod mem- Y bers 14 between adjacent longitudinally spaced end members lil. Second, they serve to support the weight of the intermediate or insert members 15 which are hung on the rod members 14, as will be described, whereby to provide against any damage to the threaded connection between the rod members 14 and the fastener members 47. It is further noted that, with the fastener members 47 being rotatably and slidably confined in the collar members 4Z by the locking screws 4S, there is no chance for the fastener members 47 to be lost or misplaced, as during transportation of the end form members 10 from one foundation pouring location to another.

After each pair of upper and lower rod members 14 have been releasably secured in the manner described between adjacent longitudinally spaced end members 16, one or more of the intermediate or insert form members 15 are adapted to be hung thereon. As best illustrated in FGS. l and 3, the intermediate or insert members 15 are open-sided box-like forms and may be fabricated from light-weight sheet metal, wood, or any other suitable material. Each box-like intermediate form member 15, which members should be equal in height to the end members lil, is characterized by a vertically disposed mold wall 55 having an outer planar mold surface, a pair of vertically disposed side walls 55 which are disposed normally to the vertical edges of the mold wall 55 and which extend away from the mold surface thereof, and by horizontally disposed top and bottom walls 57 and 5S, respectively.

The outer edge of each vertical side wall S6 of each intermediate or insert member 15 is provided with a pair of vertically spaced downwardly inclined slots dit which are open at their lower ends at the edge of the side wall 56. The width of each slot 6i? is approximately equal to the diameter of the elongated rod members 14 with the upper closed end of each slot 6) being rounded in conformity with the rod members 14. The upper ends of the slots 6G are vertically spaced and horizontally positioned in the side walls 56 of the intermediate members 15- so as to be in alignment with the rod member supporting heads 3d mounted on the inner surfaces of the side walls of the end members 10 when the top and bottom walls 57 and 58 of the intermediate members 15 are aligned with the top and bottom Walls of the end members 10, respectively.

With the slotted arrangement described herein, it is extremely simple to merely hang one or more of the intermediate members 15 on a pair of the rod members 14 whereby to completely ll the space between the adjacent longitudinally spaced end members supporting the rod members 14 with the planar mold surfaces of the intermediate members 15 being contiguous with the planar mold surfaces of the adjacent end members 10 whereby to provide a continuous planar mold surface therewith.

An intermediate or insert member 15 of greater width than those illustrated lin FIGS. 1 and 3 is illustrated in FIG. 4. The intermediate member 15 of FIG. 4 differs from that of FIG. 3 structurewise only in that a pair of vertical strengthening ribs 62 are provided intermediate the side walls 56 for purposes of rigidity. The outer edges of the ribs 62 are provided with downwardly inclined slots 63 which conform to and are aligned with the slots 60 formed in the side walls 56.

Provision is made for positively clamping each of the insert or intermedia-te form members 15 on the rod members 14 with the releasable clamping devices 65 serving to force the intermediate members 15 downwardly so as to seat the closed upper ends of the slots 66 flush againstl 'the rod members 14, whereby to insure that the intermediate members 15 will be properly aligned with the rigidly mounted end members 1) to provide a continuous planar mold surface therewith. Each side Wall 56 of each intermediate form member 15 is provided with a pair of the clamping devices 65 in association one with each of the two downwardly inclined slots 66 formed in each of the side walls 56. In FIG. l, some of the clamping devices 65 have not been shown so as not to unduly clutter the view.

As best illustrated in FIG. 6, each clamping device 65 includes a bracket plate 66 which is secured iiush against the inner surface of Ithe side wall 56 of the intermediate members 15 with one of the bracket plates 66 being positioned adjacent each of the inclined slots 60. Preferably, particularly if the intermediate members 15 are formed of wood, the bracket plates 66 should extend above and below the slots 66 and be slot-ted in conformity therewith, as is the case with the bracket plate 66 shown in FIG. 6. Each bracket plate 66 is provided with a right angular vertically `disposed flange portion 67 which extends toward the opposite side Wall 56 of the particular intermediate member 15 and which is disposed slightly below and intermediate the open and closed ends of its associated slot 60. A clamping lever 68 is pivctably mounted intermediate its ends on `the flange portion 67 of each bracket plate 66 by means of a known type bearing fastener 69 for pivoting movement in a generally vertical plane. One end of each clamping lever 68 defines a handle portion 70 with the opposite end being provided wi-th a rod-member-engaging cam portion 71 which, when the levers 68 of the four clamping devices 65 on each intermediate member 15 are pivoted downwardly, are engageable with portions of the undersides of the pair of vertically spaced rod members 14 whereby to cam the intermediate member 15 downwardly until the upper closed ends of the four slots 60 thereof are seated iiush against the rod members 14.

In the corner section of the assembled form structure illustrated in FIGS. 7 and 8, the end members 10 and the intermediate or insert members 15 are of substantially greater height than those illustrated in FIGS. 1-4. For this reason, each of these intermediate members 15 is provided with a horizontally extending strengthening rib 75 which is disposed approximately midway between the top and bottom walls 57 and 5S, respectively, thereof. Because of the substantial width of these intermediate members 15, they are provided with a pair of the vertically extending strengthening ribs 62 illustrated in FIG. 4, each of which ribs 62 is rigidly mounted in its intermediate member 15 by means of a pair of angular bracket members 74. Although not shown in FIGS. 7 and 8, the intermediate form members 15 thereof may be provided with the clamping devices 65 previously described herein.

In certain foundation pouring operations, it will be found that it is not always possible for the longitudinal spacing between adjacent end form members 1 to be in multiples of the width of the prefabricated insert or intermediate members 15. To meet this situation, rod members which are adjustable in length may be provided. Such a rod member, as illustrated in FIG. 9, includes a pair of rod sections 78 which are slidably fitted in a sleeve member 79. The opposite ends of the sleeve member 79 are characterized by outer surfaces which are tapered inwardly, as at 80, and are provided with a series of circumferentially spaced longitudinally extending slots 81 for purposes of resiliency, as will be explained. The outer ends of the rod sections 78 are axially bored and provided with conical and threaded bore portions as described in detail with reference Ito the rod member 14 shown in FIG. 5. A pair of outer clamping collars 82 are threadably mounted one on each end of the sleeve member 79 for longitudinal adjustment relative thereto. The outer end of each collar 82 is provided with an internal tapered configuration 83 adapted for mating engagement with the tapered ends of the sleeve 79. When the collars 82 are in their outermost positions, the rod sections 7S may be adjusted rto provide a rod member of any desired length. When the collar members 82 are then adjusted inwardly of the sleeves 79, the tapered configurations 83 thereof serve yto clamp the tapered resiliently split ends of the sleeve 79 against the rod sections 78 whereby to tightly retain the rod sections 78 in their adjusted positions. Locking pins 85 which extend radially :through the inner ends of the collars 82 and have their ends positioned in annular grooves 86 formed in the sleeve 79 serve to positively retain the collars 82 on the sleeve 79 and thereby prevent inadvertent loss thereof. In situations where the adjustable rod members are used, it is a simple matter to provide a custom fabricated insert or intermediate form member 15 with the desired width and slot configuration for hanging same on the adjustable rod members whereby to fill the space necessary to provide a continuous planar mold surface.

The ease and quickness of assembly and disassembly of the foregoing concrete foundation form structure is of considerable importance and results in considerable savings, particular-ly in the cost of labor requirements. As previously set forth herein, the end form members 10 are first rigidly mounted in proper alignment and with the desired spacing therebetween, both laterally and llongitudinally. The pairs of elongated rod members 14 are then releasably secured in vertically spaced relation between adjacent longitudinally spaced end form members 1i) quickly and simply by means of the rod members supporting means 36 described herein. One or moreof the intermediate or insert form members 15 are then hung on each pair of rod members 14 to completely till the spaces between adacent end members 10 by iitting the slotted edges 60 downwardly over the rod members 14. The clamping devices 65 are then actuated to true up the intermediate members 15 relative to the rigidly mounted end members 10 to provide the continuous planar mold surfaces desired and to positively clamp the intermediate members 15 on the rod members 14. The form structure is now ready for the pouring of concrete to form the desired foundation or Wall.

After the concrete has set sufficiently, it is an extremely simple procedure to remove the intermediate or insert form members 15 from between the end form members after which the end form members 1t? maybeunbolted and the form structure reassembled at a different location. The rod member supporting means 36 are first shifted to their rod-member-release positions, as previously described herein, whereby to release the rod members 14 from the end form members i@ to which they had been secured. The clamping devices 65 are then disengagedv from the rod members i4 by a simple pivoting movement of the clamping levers eti after which the released rod members 14 may be removed through the open lower ends of the slots 6d formed in the side walls S6 of the intermediate members 15. The intermediate members 15 may then be pulled away from the completed concrete foundation or wall after which the end form members it) may be easily removed by releasing theV anchor bolt fasteners 3d,

It will be understood that certain changes may be made in the construction or arrangement of the form structure disclosed herein without departing from the spirit and scope of the invention as defined in the appended claims.

I claim:

1. Form structure for pouring concrete foundations and the like comprising, a pair of vertically disposed open-sided box-like end members rigidly mounted in horizontally spaced apart relationship with their sides opposite the open sides being aligned in a vertical plane and defining planar mold surfaces, a pair of elongated rod members equal in length to the distance between said horizontally spaced end members, supporting members mounted on said end members and releasably engageable with the ends of said rod members for securing same between said end members in horizontally disposed vertically spaced relationship,Y said supporting members being releasable so asto permit said rod members to be moved laterally thereby to detach the same from the end members, a plurality of open-sided boxlike intermediate members substantially equal in height to said box-like end members and characterized by mold surfaces opposite the open sides thereof and by vertically extending side walls disposed normally to said mold surfaces, and a pair of vertically spaced downwardly inclined slots formed in the edge of each of said side walls of each of said intermediate members, said intermediate members being adapted to be hung on said pair of vertically spaced rod members prior to a pouring operation by fitting said slotted side walls downwardly over said rod members whereby said intermediate members completely till the space between said end members and said mold surfaces of said intermediate members are contiguous with said mold surfaces of said end members to provide a continuous planar mold surface, whereby said rod members may be released from said supporting members and simultaneously disengaged from said slotted side walls of said intermediate members hung thereon thereby to permit ready removal of said intermediate members from between said end members.

2. Form structure for pouring concrete foundations and the like comprising, a series of pairs of vertically disposed open-sided box-like end members rigidly mounted at their lower Vends in horizontally spaced apart relationship with their sides opposite the open sides being disposed vertically and defining planar mold surfaces, said end members of each pair being mounted with their mold surfaces facing each other and spaced apart a distance equal to the thickness of the foundation to be poured and in the same vertical plane with the mold surfaces of adjacent longitudinally spaced end members, a laterally extending brace member secured between the upper ends of said end members of each pair, a series of pairs of Velongated rod members equal in length to the distance between adjacent ones of said longitudinally spaced end members, supporting members mounted on said end members and releasably engageable with the ends of said rodv members for securing a pair thereof be- Y tween each of said adjacent longitudinally spaced end members in horizontally disposed vertically spaced relationship, said supporting members being releasable so as to permit said rod members to be moved laterally thereby to detach the same from the end members, a plurality of open-sided box-like intermediate members substantially equal in height to said box-like end members and characterized by mold surfaces opposite the open sides thereof and by vertically extending side walls disposed normally to said mold surfaces, and a pair of vertically spaced downwardly inclined slots formed in the edge of each of said side walls of each of said intermediate members, two or more of said intermediate members being adapted to be hung on each of said pairs of vertically spaced rod members prior to a pouring operation by fitting said slotted side walls downwardly over said rod members whereby said intermediate members completely fill the spaces between said adjacent longitudinally spaced end members and said mold surfaces of intermediate members are contiguous with said mold surfaces of said end members whereby to provide a pair of laterally spaced continuous planar mold surfaces, whereby said rod members may be released from said supporting members and simultaneously disengaged from said slotted side walls of said intermediate members hung thereon thereby to permit ready removal of said intermediate members from between said end members.

3. Form structure as recited in claim 2 wherein the opposite ends or" said rod members are axially bored and provided with internal thread formations, and wherein said rod member supporting members comprise pairs of collar members rigidly mounted on said end members in vertically spaced relationship, and a manually releasable fastener member having an externally threaded end portion movably confined in each of said collar members whereby to permit threaded engagement thereof in the internally threaded ends of said rod members to securely support a pair of said rod members between each of said adjacent longitudinally spaced end members in horizontally disposed vertically spaced relationship.

4. Form structure for pouring concrete foundations and the like comprising, a pair of vertically disposed open-sided box-like end members rigidly mounted in horizontally spaced apart relationship with their sides opposite the open sides being aligned in a vertical plane and defining planar mold surfaces, a pair of elongated rod members equal in length to the distance between said horizontally spaced end members, supporting rod heads mounted on said end members and releasably engageable with the ends of said rod members for securing same between said end members in horizontally disposed vertically spaced relationship, said supporting rod heads being releasable so as to permit said rod members to be moved laterally thereby to detach the same from the end members, a plurality of open-sided box-like intermediate members substantially equal in height to said box-like end members and characterized by mold surfaces opposite the open sides thereof and by vertically extending side walls disposed normally to said mold surfaces, a pair of vertically spaced downwardly inclined slots formed in the edge of each of said4 side walls of each of said intermediate members, said intermediate members being adapted to be hung on said pair of vertically spaced rod members prior to a pouring operation by fitting said slotted side walls downwardly over said rod members whereby said intermediate members completely fill the space between said end members and said mold surfaces of said intermediate members are contiguous with said mold surfaces of said end members to provide a continuous planar mold surface, and clamping levers pivotably mounted on the inner surfaces of said sidewalls of said intermediate members adjacent 9 each of said vertically spaced slots for releasably clamping said intermediate members on said rod members with the upper ends of said slots seated flush against said rod members, whereby said rod members may be removed from between said end members upon release of said supporting rod heads and disengaged from said slotted side walls of said intermediate members hung thereon upon release of said clamping levers thereby to permit ready removal of said intermediate members from between said end members.

5. Form structure for pouring concrete foundations and the like comprising, a series of pairs of vertically disposed open-sided box-like end members rigidly mounted at their lower ends in longitudinally spaced apart relationship with their sides opposite the open sides being disposed vertically and defining planar mold surfaces, said end members of each pair being mounted with their mold surfaces facing each other and spaced apart a distance equal to the thickness of the foundation to be poured and in the same vertical plane with the mold surfaces of adjacent longitudinally spaced end members, a laterally extending brace member secured between the upper ends of said end members of each pair, a series of pairs of elongated rod members equal in length to the distances between adjacent ones of said longitudinally spaced end members, means for releasably securing a pair of said rod members between each of said adjacent longitudinally spaced end members in horizontally disposed vertically spaced relationship, said means being releasable so as to permit said rod members to be moved laterally thereby to detach the same from the end members, a plurality of open-sided box-like intermediate members substantially equal in height to said box-like end members and characterized by mold surfaces opposite the open sides thereof and by vertically extending side walls disposed normally to said mold surfaces, a pair of vertically spaced downwardly inclined slots formed in the edge of each of said side walls of each of said intermediate members, two or more of said intermediate members being adapted to be hung on each of said pairs of vertically spaced rod members prior to a pouring operation by fitting said slotted side walls downwardly over said rod members whereby said intermediate members completely ll the spaces between said adjacent longitudinally spaced end members and said mold surfaces of said intermediate members are contiguous with said mold surfaces of said end members whereby to provide a pair of laterally spaced continuous planar mold surfaces, and releasable clamp means provided on said intermediate members for clamping same to said rod members, whereby said rod members may be released from said end members and disengaged from said slotted side walls of said intermediate members hung thereon upon release of said clamp means thereby to permit ready removal of said intermediate members from between said end members.

6. Form structure as recited in claim wherein said releasable clamp means comprises a pair of clamping levers pivotably mounted on the inner surface of each of said vertically extending side walls of each of said intermediate members with each lever of each pair being.r disposed immediately below a different one of said pair of vertically spaced downwardly inclined slots formed in the edge of each vertical side wall of said intermediate members, said clamping levers being characterized by handle portions at one end and rod member engaging portions at their opposite ends, which latter portions when the clamping levers are pivoted into their operable positions are engageable with the undersides of said rod members in a manner such that the intermediate members are forced downwardly to seat the upper closed ends of said inclined slots iiush against said rod members whereby to properly align said mold surfaces of said intermediate members.

7. Form structure for pouring concrete foundations and the like comprising, a pair of vertically disposed end form members rigidly mounted in horizontally spaced relation, each of which end form members has a planar mold surface in a common vertical plane, horizontally disposed rod members releasably secured at their opposite ends to Ysaidend fornrmembers by means which are releasable so as to permit said rod members to be moved laterally therebyto detach the same from the end form members, a plurality of intermediate form members, each of which intermediate form members has a planar mold surface, inclined slot means open at one end thereof provided with each of Asaid intermediate form members for hanging the same on said rod members prior to a pouring operation with said intermediate form members completely filling the space between said end form members and with the mold surfaces on the intermediate form members being in said vertical plane whereby to provide a continuous planar mold surface, whereby said rod members may be released from said end members and simultaneously disengaged from said inclined slot means of said intermediate form members hung thereon thereby to permit ready removal of said intermediate form members.

8. Form structure for pouring concrete foundations and the like comprising, a pair of vertically disposed open-sided box-like end members rigidly mounted in horizontally spaced apart relationship with their sides opposite the open sides being aligned in a vertical plane and defining planar mold surfaces, a plurality of rod members adapted to extend between said horizontally spaced end members, supporting members engageable with said end members and with the ends of said rod members for releasably securing said rod members between said end members in horizontally disposed vertically spaced relationship, said supporting members being releasable so as to permit said rod members to be moved laterally thereby to detach the same from the end members, a plurality of open-sided box-like intermediate members each having mold surfaces opposite the open sides thereof and each having vertically extending side walls disposed normally to the mold surfaces thereof, and a plurality of vertically spaced inclined slots formed in the edge of each of said side walls of each of said intermediate members, said intermediate members being adapted to be hung on said vertically spaced rod members prior to a pouring operation by tting said slotted side walls downwardly over said rod members whereby said intermediate members completely fill the space between said end members and said mold surfaces of said intermediate members are co-planar with said mold surfaces of said end members to provide a continuous planar mold surface, whereby said rod members may be released from said supporting members and simultaneously disengaged from said slotted side walls of said intermediate members hung thereon thereby to permit ready removal of said intermediate members from between said end members.

9. Form structure for pouring concrete foundations and the like comprising, a pair of end form members rigidly mounted in horizontally spaced apart relationship and having aligned vertically disposed mold surfaces, horizontally disposed rod members releasably secured at their opposite ends to said end form members by means which are releasable so as to permit said rod members to be moved laterally thereby to detach the same from the end form members, a plurality of intermediate form members having vertically disposed mold surfaces, said intermediate form members including means adapting them to be hung on said rod members with their mold surfaces being disposed contiguously with said mold surfaces of said end form members whereby to provide a continuous mold surface, the means adapting the intermediate form members to be hung on the rod members being such that the rods may be moved laterally away from said intermediate form members,

1 1 whereby said rod members may be 'released from said end form members and simultaneously disengaged from said intermediate form members hung thereon thereby to permit ready removal of said intermediate form members.

References Cited in the file of this patent UNITED STATES PATENTS 12 FOREIGN PATENTS Australia Mar. 26, 1958 France Sept. 27, 1937 France Nov. 24, 1958 France Aug. 10, 1959 Germany June 29, 1931 Italy July 4, 1950 Sweden July 6, 1954 OTHER REFERENCES Germany specification DAS 1,085,323, July 14, 1960. 

9. FORM STRUCTURE FOR POURING CONCRETE FOUNDATIONS AND THE LIKE COMPRISING, A PAIR OF END FORM MEMBERS RIGIDLY MOUNTED IN HORIZONTALLY SPACED APART RELATIONSHIP AND HAVING ALIGNED VERTICALLY DISPOSED MOLD SURFACES, HORIZONTALLY DISPOSED ROD MEMBERS RELEASABLY SECURED AT THEIR OPPOSITE ENDS TO SAID END FORM MEMBERS BY MEANS WHICH ARE RELEASABLE SO AS TO PERMIT SAID ROD MEMBERS TO BE MOVED LATERALLY THEREBY TO DETACH THE SAME FROM THE END FORM MEMBERS, A PLURALITY OF INTERMEDAITE FROM MEMBERS HAVING VERTICALLY DISPOSED MOLD SURFACES, SAID INTERMEDIATE FROM MEMBERS INCLUDING MEANS ADAPTING THEM TO BE HUNG ON SAID ROD MEMBERS WITH THEIR MOLD SURFACES BEING DISPOSED CONTIGUOUSLY 